Tungsten Rod
Description
Tungsten has the highest melting point and lowest vapor pressure of all metals, and at temperatures over 1650 ℃, it has the highest tensile strength. In addition, It has excellent corrosion resistance and is attacked only slightly by most mineral acids. Pure tungsten is a greyish-white lustrous metal and when made into a fine powder can be combustible and can spontaneously ignite. Natural tungsten contains five stable isotopes and 21 other unstable isotopes. Tungsten is used in many different ways because its excellent properties.
As a worldwide supplier of tungsten products supplier, Alfa Chemistry specializes in the manufacture and sale of high-quality tungsten rods. Tungsten rods are manufactured in random length pieces and can be cut to customers' desired lengths.
General Properties
| Items | Tungsten Rod |
|---|---|
| Catalog | ACAM-W-P002 |
| Density | > 18.3 g/cm3 |
| Surface | Sintering surface, Forged surface, Ground surface, Polished surface |
| Material | Pure W |
| Purity | 99.95%, 99.99%, 99.999% |
Chemical Component
| Elements | Fe | Ca | Be | Sn | Al | Ni | Zn | Sb | Pt | K |
|---|---|---|---|---|---|---|---|---|---|---|
| 99.999W | 0.0001 | 0.00005 | 0.000005 | 0.000005 | 0.00005 | 0.00001 | 0.00005 | 0.00005 | 0.00003 | 0.000005 |
| 99.99W | 0.0001 | 0.00045 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0005 |
| 99.95W | 0.005 | 0.003 | -- | 0.0001 | 0.002 | 0.003 | -- | 0.001 | -- | -- |
| Elements | Ta | Na | Cr | Pb | As | Mg | Ti | Bi | Mo | Cd |
| 99.999W | 0.0001 | 0.00005 | 0.000005 | 0.00001 | 0.00005 | 0.00005 | 0.000005 | 0.00001 | 0.00001 | 0.000005 |
| 99.99W | -- | 0.0009 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0002 | 0.0001 |
| 99.95W | -- | -- | -- | 0.0001 | 0.002 | 0.002 | -- | 0.0001 | 0.001 | -- |
| Elements | Cu | Ba | Co | Mn | O | C | P | N | Si | |
| 99.999W | 0.000007 | 0.00001 | 0.000005 | 0.000005 | -- | -- | -- | -- | -- | |
| 99.99W | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.004 | -- | -- | -- | -- | |
| 99.95W | -- | -- | -- | -- | 0.003 | 0.005 | 0.001 | 0.003 | 0.003 |
* Unit: %, max
Size and Tolerance
| Surface | Diameter (mm) | Tolerance (mm) | Length (mm) | Tolerance (mm) | Roughness (um) |
|---|---|---|---|---|---|
| Forged | 1.0-80 | ±1~±2 | 10-3000 | ±1~±2 | / |
| Lathed | 1.0-80 | ±0.01~±0.05 | 10-3000 | ±0.01~±1 | Ra≤1.6 |
| Ground | 1.0-80 | ±0.01~±0.05 | 10-3000 | ±0.01~±1 | Ra≤0.8 |
Applications
Thanks to their excellent properties tungsten rods have a wide range of applications, for example:
- Used as electrodes in the field of the rare earth metal industry.
- Electrode in the field of device and machining technology or in the lighting industry.
- Manufacturing components used in electric light source electric vacuum.
- Used as heating elements and refractory parts in high-temperature furnaces.